Question

SUMMARY OF MINERAL RICHES IN THE SOIL

Answer 1

Soil is formed from huge rocks and minerals. Over the thousands and millions of years, the rocks and minerals at the earth surface start to dissolve and break down. This results in the formation of the fine particles of soil. These rocks are called parent rocks and the process is called weathering. Weathering involves a series of events under the influence of various factors. Weathering of rocks includes physical, chemical as well as biological processes. Some of the factors that influence soil formation are as follows:

Sun: The hot and cool atmosphere during day and night causes expansion and contraction of huge rocks. The uneven expansion and contraction eventually cracks the rock and thus weathering starts.Wind: A strong wind can carry small rocks and this will help one rock to strike against another. Continuous collisions wear down the rocks into smaller pieces. Winds also help to transfer soil from one place to another.Water: Water gets into the cracks in the rock.As the time passes, this will widen the cracks and break them further. Also, a heavy water flow carries smaller rocks which collide with other rocks, leading to erosion.Living organisms: Plants, algae, lichens, etc. are different organisms which take part in the soil formation. The chemicals produced by lichens as well as the growth and penetration of roots of trees into the cracks in the rocks, all these minces the rocks into soil

Answer 2

$Answer$

Minerals basically formed by the break down of large rocks. Some of the most common minerals found in soil are, Iron, Potassium, Magnesium, Calcium, Sulphur etc. Humus: Humus is the organic substances that are formed due to decomposition of dead and decomposing plants and animals. It lends the soil its fertility.